The 18th International Course on Wood Anatomy of Tree Rings "Wood Anatomy and Tree-Ring Ecology 2018" will be held on November 26 to December 1, 2018, in Klosters Dorf, Switzerland. The course is organized by Holger Gärtner, Alan Crivellaro and Fritz H. Schweingruber. The deadline for registration is October 1, 2018. Acceptance of participation will be done on a first come, first served basis. Please contact Holger Gärtner (holger.gaertner@wsl.ch) for registration. More details and information update can be found at: https://www.wsl.ch/en/about-wsl/events/courses/international-course-on-wood-anatomy-tree-ring-ecology-2018.html